Invicta had led 4-0 after the first quarter and were 6-4 ahead at the start of the last when Will Liddle converted a man-up chance. Josh Barrett then took over for Watford, scoring three times to put his side ahead for the first time at 7-6. Further goals followed from Andy Holt, Finlay Parnell and Jared Baker.
Stephen Bayles and Ashley Castle both scored four as Sutton & Cheam beat Exeter 17-11. Later, Sutton completed a second win to maintain an unbeaten record - 10-8 against Watford. The sides were level at 7-7 in the final quarter before goals by Ashley Castle, Caleb Hughes and Ryan Symington earned the points.
In men's Championship 2, Southampton defeated Castleford 10-7 to complete their second victory of the day. Charles Roberts (4) and Jackson Mullins (3) led the scoring. Otter beat Rotherham Metro 15-13 featuring hat-tricks by Nick Carjon, Omiros Pantazi and Guillrmo Blanco.
Photo (Trevor Hyde): Josh Barrett (blue cap) on the attack aginst Invicta at Haberdashers today.